Gas mixture



Patented Nov. 26, 1946 2,411,759 A GAS IVMTUBE.

Louis E. Seley,

Samuel Harry 1 Claim.

This invention is directed to a gaseous fuel designed more particularly, but in no wise limited to use with oxygen for welding and heating metals, preheating of metals in cutting operations, casehardening of metals, metal spraying, lead burning, working of glass, and like purposes.

Various mixtures have been heretofore proposed for such purposes, particularly the mixture of propane, or butane and propane with di-ethyl ether, and also other similar mixtures which while effective as compared with untreated gases, are nevertheless wanting in an ideal mixture tending to the most direct and effective results combined with economy in use, particularly in the oxygen content of the flame, the quantity of fuel gas consumed andthe necessity for an intensejfiame temperature necessary to rapidly dotthe' work for which it is intended.

The primary object of the present invention is the production of a gasfor the designed purpose which in its definite and essentially critical proportions produces a greater flame temperature, and materially reduces the amount of time, oxygen and gas required for any particular work in comparison with previous mixtures or bare untreated gases.

The compounded mixture in the ingredients and the range and proportion as an effective minimum are as follows: '7 lbs. of propane or a mixture of propane and butane with not appreciably less than '7 ounces of ethyl oxide and 7 ounces of benzine; and as a maximum: 9 lbs. of propane or a mixture of propane and butane with not appreciably more than 1 lb. of ethyl oxide and 1 lb. of benzine. The above specifically stated proportions are substantially 82 to 89% of propane, substantially /2 to 9% of diethyl ether, and substantially 5 /2 to 9% of benzine.

The ethyl oxide and benzine are miscible with each other and mingle in one solution and are therefore mixed with the propane or propane and butane in required proportions to produce the desired results.

it is understood that the proportions given are exact and definitely critical in each range, can

Brooklyn,

White, Detroit,

Drawing. Application February 4, 1944,

Serial No. 521,1

N. Y., assignor to Mich.

(ill. 44-52) not be materially varied without sacrificing the valuable and necessary characteristics of the mixture. A lesser proportion than stated has no beneficial efiect and a larger proportion tends to de- 5 crease the effectivenes of the flame. This has been proven through a long series of laboratory and practical tests and uses, which tests clearly disclosed that any material variation from the critical proportions above mentioned sacrifice 10 one or another of the valuable and highly important results.

The tests of the new fuel show that in use,

, the flame is more intense, the temperature is materially increased over previous and conventional l5 mixtures, there is less gas and oxygen required in the flame than in previous mixtures, and due to the lower gas and oxygen pressures required for an effective flame, the highly objectionable cupped tip can be discarded and a flush type tip 0 used, since this new flame will not blow ofi the end of the tip.

The mixture, in liquid or. gaseous form, may be effectively used in steel containers, pipe lines, or other conventional methods of application.

25, Ordinary commercial ethyl oxide and benzine may be used, but the use of methyl oxide or synthetic oxides of either or both may be used with either the high or low boiling point benzine.

This mixture readily lends itself,to any and all uses for which a gas of this character may or can be used, bearing in mind always that the defined proportions in the particular ranges are critical and should not be changed if the-desired results are to be obtained.

What is claimed is:

The method of generating a gaseous fuel for use in welding and cutting of metals, heating, hardening, and for like purposes, comprising the spraying of propane with the vapor of benzine.

40 and di-ethyl ether in the following proportion by weight, substantially 82 to 89% propane, substantially 5 to 9% di-ethyl ether, and substantially 5 /2 to 9% of benzine.

. LOUIS E. SELEY. 

